From: Kalle Valo <kvalo@codeaurora.org>
To: Chris Chiu <chiu@endlessm.com>
Cc: Jes.Sorensen@gmail.com, davem@davemloft.net,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linux@endlessm.com
Subject: Re: [PATCH v2] rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot
Date: Tue, 22 Oct 2019 08:26:39 +0000 (UTC) [thread overview]
Message-ID: <20191022082639.1DE316079D@smtp.codeaurora.org> (raw)
In-Reply-To: <20191016015408.11091-1-chiu@endlessm.com>
Chris Chiu <chiu@endlessm.com> wrote:
> The RTL8723BU has problems connecting to AP after each warm reboot.
> Sometimes it returns no scan result, and in most cases, it fails
> the authentication for unknown reason. However, it works totally
> fine after cold reboot.
>
> Compare the value of register SYS_CR and SYS_CLK_MAC_CLK_ENABLE
> for cold reboot and warm reboot, the registers imply that the MAC
> is already powered and thus some procedures are skipped during
> driver initialization. Double checked the vendor driver, it reads
> the SYS_CR and SYS_CLK_MAC_CLK_ENABLE also but doesn't skip any
> during initialization based on them. This commit only tells the
> RTL8723BU to do full initialization without checking MAC status.
>
> Signed-off-by: Chris Chiu <chiu@endlessm.com>
> Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Patch applied to wireless-drivers-next.git, thanks.
0eeb91ade90c rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot
--
https://patchwork.kernel.org/patch/11192201/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2019-10-22 8:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 1:54 [PATCH v2] rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot Chris Chiu
2019-10-17 2:26 ` Chris Chiu
2019-10-21 2:26 ` Chris Chiu
2019-10-21 8:29 ` Kalle Valo
2019-10-22 8:26 ` Kalle Valo [this message]
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